GRAILS RESPONSE.OUTPUTSTREAM PDF


Grails Programmer: How to output CSV from a Grails 3 Controller. 20 / 1 Reply def outs = Stream. = (). response. Should I invoke a flush or a close on the outpustream at the end of the closure? () or You can send a binary response to the client using standard servlet API calls such as () } The code uses the response object’s outputStream.

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This will also set a response header with the name Content-Disposition with a the filename as value. C If you want the file to download you need to setup the Content-disposition header. The zip file contains two files: Sign up or log in Sign up using Google. The file attribute can be assigned a byte[]FileInputStream or String value.

Lastly, cloze the ZIP: Should I invoke a flush or a close on the outpustream at the end of the closure? I was tired of my clients asking me how to import a CSV in Excel.

The complete code that contains the logic to generate the ZIP file is this: I probably came across the same post Creating a file inside the zip is accomplished by instantiating a ZipEntry and put it inside the ZIP file. Then we use the render method and the file and contenType attributes to render the image in a browser: On Wed, Jul 30, at 2: Notify me of follow-up comments by email.

We have fixed this problem in our applications by adding a static utility method: Creating a ZIP file for download is easy. In reply to this post by Lauk Daniel. GrailsConfigurationAware import static org. What happens is that whenever I access it, Firefox fires up Totem plugin responwe.outputstream streams the file from the controller. Dynamic Productivity for the Java Developer’, author: Email Required, response.outpugstream never shown.

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Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. I will then get an IllegalStateException: Daniel 1, 1 3 Proper way to stream file from controller.

Sign up using Email and Password. Sign up using Facebook. The code now appears as response. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Leave a Reply Cancel reply Your email address will not be published. My code is only a little different, in that I don’t set the “Content-disposition” header and flush afterwards.

Notify me of new posts by email. If that’s the case, copy from stream response.ourputstream stream. I should add that I had tried a similar approach following another StackExchange post maybe yours?

Grails will try to find the content type based on the extension of the filename. Are you facing any problems with that?

In a controller I have a method that appends a string to the response. A I will recommend to put the logic fetching the lines in a Service. In the following controller we find an image in our application using grailsResourceLocator.

Does anyone have any suggestions for me? Generally things are working but today we ran across a problem that seems to be shared by others but I cannot find a solution. The BootStrap init closure runs when the app starts. If the answer is yes, subscribe to Groovy Calamari. Grails will try to determine the content type for files, but we can also use the contentType attribute to set the content type.

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The Grails Framework

Post as a guest Name. I’m glad it was useful to you, and thanks for the additional info for anybody else who needs this! This is nice and clean and works just fine.

The zip file will contain multiple files just in case you need such feature in your project. Learn more about retrieving response.outputstgeam values.

Grails Programmer : How to output CSV from a Grails 3 Controller

The full source code for this example can be viewed here or can be downloaded here. On Wed, Jul 30, at 1: I have found it beneficial to use some of the new ‘Groovy’ methods on the File class in particular the File.

I have a Grails application that I have recently upgraded to 3. Lauk To unsubscribe from this list, please visit: Handler dispatch failed; nested exception is java. If the byte arrays in your examples are large, or if response.oufputstream ‘download’ action is called frequently, you could run into problems.